1. Load ROM.
2. Define its type using rightmost combo field. Not applicable to Meritum ROMs (use
drop-down menu near Open to open it)
3. View, modify or convert characters using program functions
4. If you want, do the same thing with 2nd bank or add another bank. If you
click "Import" and then "Bank 0 to current bank", you can add another ROM to
currently selected bank. If you click "Bank 1 to current bank" bank 2 of
selected multibank ROM will be imported. The "Abandon current file" dialog is
meaningless here, click Yes.
5. Save resulting file
6. Check it.